His bond was set at $1,000 and he was scheduled to appear in state Superior Court in Stamford on Tuesday.

With his most recent arrest, Plunkett has four active files in state Superior Court in Stamford.

In January, Plunkett was accused of impersonating a doctor and providing a Greenwich woman with a drug to treat multiple sclerosis.

Police said the January charges stemmed from a series of incidents around May 2011, in which Plunkett allegedly ingratiated himself with a local family that included a 68-year-old woman with medical issues.

After telling the woman he was a doctor, Plunkett began to provide care to her, including establishing a schedule for taking narcotics and regular injections, police said.

He helped inject the woman -- who later learned she does not have MS -- with Copaxone, a drug used to treat the disease, according to the warrant for his arrest. He provided her with daily doses of the drug for five weeks, police said.

Plunkett does not have a license to practice medicine in Connecticut, according to police, and earlier this year a representative from New York Presbyterian Hospital said no one with Plunkett's name had ever been associated with the hospital, as Plunkett had claimed.

At the time of his January arrest, he was already facing more than 40 counts of identity theft and forgery from an October arrest by Greenwich police.

He used his father's identification to defraud his former wife's medical insurance company and other businesses of more than $50,000, police said.